Tiling: I like KDE 4's "Tile windows by dragging them to the side of the screen" feature, but that only tiles two windows side by side. Is there any way to tile them one below the other, or to tile more than two windows?

Cascading: Is there any way to do this except to type the command "qdbus org.kde.kwin /KWin org.kde.KWin.cascadeDesktop" or set a global shorcut to do that?

I don't have a tiling option there in KDE 4.4.5-1. In that tab, under Window Tabbing, Placement, I have these options: Smart, Maximizing, Cascade, Random, Centered, Zero-Cornered (don't know what that is).